4034 KB32 KB198520252016Ogrin, MatejStrle, Danijelaštevilka:45str. 101-118ISSN:0354-0596COBISSID:63265634URN:URN:NBN:SI:doc-PGC41MNVslZnanstvena založba Filozofske fakulteteDela - Oddelek za geografijo Filozofske fakultete v LjubljaniclimatologyJulian AlpsJulijske AlpeklimatologijapadavinePlanicasnegtemperaturaTromejaPojav znižane meje sneženja na območju doline Planice in Peči (Tromeje)|In the paper we analyze the precipitation event on the night from March 25th 2015 to March 26th 2015 during the passage of the cold front. Analysis of temperature conditions in meteorological stations around the studied area (Planica Valley and Mt. Peč) shows that during the precipitation event there was no cold advection under 2500 m. In fact, data showed even small temperature rise. However, during the period of the strongest precipitation, temperatures on our monitoring stations fell close to freezing point and for short period isotherm profile was formed in the Planica Valley. Consequently, snow line reached valley bottom for a few hours. Data also show that during strongest precipitation and cooling, wind speed at the valley bottom decreased to almost calm, which indicates decoupling of air in the lower part of the valley from the air aboveV prispevku analiziramo padavinski dogodek v noči s 25. na 26. marec 2016 ob prehodu hladne fronte. Analiza temperaturnih razmer na proučevanem območju (dolina Planice in Peč) pokaže, da v času padavin v višinah pod 2500 m ni bilo hladne advekcije. Podatki kažejo celo rahel porast temperature. Vendar pa so v času najmočnejših padavin temperature na naših temperaturnih postajah padle blizu ledišča in za kratek čas je bil nad Planico oblikovan izotermni profil, tako da je za nekaj ur snežna meja dosegla dolinsko dno. Podatki tudi kažejo, da je v času najmočnejših padavin in ohlajevanja nastopilo skoraj brezvetrje, kar kaže na to, da sta dolinska atmosfera in atmosfera nad njo v smislu advekcije in posledično temperaturnih sprememb v času znižane meje sneženja povsem ločeniTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Filozofska fakulteta